Window-locking device.



C J. SELASKY.

WINDOW LOCKING DEVICE.

APPLICATION FILED JULY 24, 1918.

1,301,551 11 Patented Apr. 22, 1919.

'IIIIIII'II'II 7 III JLJLJLJLIUU-LJLILJLJUTJLJLILILJLJLJLHJ CHARLES J. SELASKY, OF PITTSBURGH, PENNSYLVANIA.

wnvnow-Loomne nnvron.

a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented new and useful Improvements in Window-Lock- -ing.Devices, of which the following is a specification.

The invention is designed to provide a device of this character by means of which the two sash of a window may be securely locked either in the closed position or in a partially open position. Thus a window on which the device is used may be lowered from the top or raised from the bottom and yet leave the window securely locked against intruders.

The invention is further designed to provide a device of this character which is simple in construction, durable and elfective in operation and inexpensive to manufacture.

To the exact construction in which it is shown and described, the invention is not to be restricted. The right is reserved to make such changes or alterations as the actual reduction to practice may suggest, in so far as such changes or alterations are comprehended in spirit by the annexed claim.

In the accompanying drawings Figure 1 is an elevatlonal view of one side of a window frame and its sash showing the application of the invention,

Fig. 2 is a longitudinal sectional view of the lock and a portion of the cooperating rack,

Fig. 3 is a section on the line 3-8 of Fig. 2,

Fig. 4 is a perspective View of the rack engaging end of the locking bolt.

Referring to the drawings, the invention is shown as com-prising a rack 1 made of relatively thin stock and for practical purpose made approximately twelve inches in length. This rack is designed for attachment on one of the side rails of the outer or upper sash of a window, it being provided with appropriate screw holes to permit the rack to be attached by means of wood screws. If the side rail of the window frame is square with the face of the sash, spacers will be necessary, but with the average sash, the edge oining the face of the side rail is ornamented by beveling the corner. Thus if the rack be attached to the edge of the side rail adjacent its line of juncture with the glass, the free longitudinal edge of the Specification of Letters Patent.

Patented Apr. 22, itlllil.

Application filed July 24. 1918. Serial No. 246,549.

rack will be spaced away from the corner of the side rail so that the free edge may be engaged by means constituting the other portion of the invention and which is hereinafter described. It is not intended that the free edge of the rack shall project be yond the front face of the side rail, for so to do would preclude the raising of the lower sash unless the meeting rail of the latter were slotted to provide room for the free end of the rack.

The rack on its longitudinal edge is provided with a plurality of teeth 2 spaced substantially one-fourth of an inch apart and being approximately one-fourth of an inch in length, the slots between the teeth being approximately one-fourth of an inch deep.

Cooperating with the rack, there is a looking bolt 3, in one end of which there is cut the slot 4. The two ends of the locking bolt provided as the result of the formation of the slot straddle the teeth of the rack and the bolt is of such thickness that from passing from one tooth to the other, it engages one before leaving the other. Formed in the slot 4, the locking bolt has a projection 5 which is designed to enter the slots between the teeth 2. The locking bolt is carried in an appropriate casing 6 whose flanges 7 are formed with appropriate holes to permit the attach-ment of the casing on top of the meeting rail of the lower sash of the window. The locking bolt is designed for longitudinal movement in the casing and when moved toward the rear of the casing, the projec tion 5 will pass the teeth 2, thus the lower sash may be raised or the top sash lowered without interference. In this position of the locking bolt, however, the teeth of the rack still engage in the slot formed therein, so that there may be no relative lateral movement of the sash that will effect the disengagement of the bolt from the rack. When the locking bolt is slid forwardly the distance it is designed to move, the projection 5 may be engaged in any one of the slots between the teeth 2 if the sash are in such relative positions as to permit this engagement.

In the top of the casing 6 there is formed a longitudinal slot 8 and a screw 9 passes through this slot and through the locking bolt, threadingly engaging the bolt, however, but loosely engaging the slot. The top of the screw is provided with wings 10 to permit its being turned by hand, and the screw when turned to the right seats upon the bottom of the casing 8 and thus serves to screw the locking bolt firmly in any positions within the limits of its longitudinal movement.

In the operation of the device, it is obvi ous that when the bolt 3 is in a position where the projection 5 is free of the teeth,

the two sash may be raised or lowered with out interference. On the other hand, if the bolt is in such a position that the projection 5 engages in any one of the slots between the teeth, any relative movement between the tWo sash is precluded and the Window may thus be locked in partial open position with either the top s ash lowered or the lower sash raised.

From the foregoing description and the accompanying drawings, it is thought that the construction and operation of the invention has been rendered clear enough to make unnecessary fiii'ther description.

The invention having been described, What is claimed as new and useful is In a device of the class described, a toothed rack for attachment on the side rail of one sash of a window frame, a locking bolt for attachment on the meeting rail of the other sash of said window frame, the locking bolt having a slotted end straddling the teeth of the rack and having a projection formed within the slot for engagement in the slots between the teeth of the rack, and meansfoilocking the locking bolt so that the said projection is maintained either in or out of engagement With the said slots of the rack. In testimony whereof I aflix my signature.

CHARLES J. SELASKY.

Copies of tliis patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington; D. G. 

